package ooday01;

public class Student extends Person{
    String className;
    String stuId;
    Student(){
    }
    Student(String name,int age,String address,String className, String stuId){
        this.name=name;
        this.age=age;
        this.address=address;
        this.className=className;
        this.stuId=stuId;
    }
    void study(){
        System.out.println(name+"正在学习...");
    }
    void sayHello(){
        System.out.println("大家好，我叫"+name+",今年"+age+"岁了，"+className+"是我的班级，我的学号是"+stuId);
    }

}
